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///M3 Forum The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

I was playing with my car the other day driving around. I started to notice the clunk sometimes. More so in low gears. It almost feels as if the driveshaft goes into neutral in between shifting. Engages when clutch pedal is let out. Just a idea. My eclipse, like so many other eclipses', had a rattle sometimes when it was started. Turn off, restart, no rattle

No this isn't quite "normal" as people make it out to be. Improper driveline maintenance and/or driving skills are to blame. A "normal M clunk" is almost nothing and only shows up quietly when you improperly shift. A well maintained driveline will be very solid and free of issues. This includes; motor mounts, transmission mounts, center support bearing, center support, giubo, differential bushings, differential bolts (which break), differential condition, subframe bushings, subframe pan, rear trailing arm bushings and ball joints. If you've owned a low mileage well cared for car you know what the E46 M3 is supposed to feel like. If you haven't and you have a 60k+ car, I suggest you start turning some wrenches to inspect each and every failure point.

I have all the oem fluids. I've been driving manuals for 20 years. Its not that im banging gears. Im shifting smoothly. I just think its a little engaging/disengaging of the driveshaft. The lsd idea seems to make sense too

As I said, it's perfectly normal. To put yourself at ease, make sure your fluids are full (should be up to bottom of upper diff fluid hole) and seals are not leaking. At low speeds doing figure 8's and pressing clutch in and out, you will hear it (some say it sounds like a universal joint clunk).